Winner, who set up the Police Memorial Trust following the death of Pc Yvonne Fletcher in 1984, was also hailed by Metropolitan Police Commissioner Sir Bernard Hogan-Howe, while a message from Prime Minister David Cameron was read out.

Around 100 people gathered in the north east corner of St James's Park to witness the unveiling of a plaque in honour of Winner.

The 79-year-old movie star collected the honour along with other luminaries from Southwark, south London, in a ceremony at St George's Cathedral, not far from Elephant and Castle, where he grew up.

Sir Michael said: "I've received awards before, but this is so personal, because it's about where I grew up."

Asked why he thought he had been given the award, he said: "I think it's because I come from here. I did my first acting in a youth club here, an amateur dramatic society. I'm part of what this place is."

The Italian Job star is presented with the honour by The Worshipful Mayor of Southwark, Councillor Lorraine Lauder. Credit: Lewis Whyld/PA Wire

The Alfie and Zulu star was nominated for the award by Peter John, leader of Southwark Council, who said: "Sir Michael has been an exceptional ambassador for the place where he grew up and an example for all Southwark residents."

The honorary freedom of the borough is given to individuals or organisations in recognition of their contribution made to life there.